We have perfected our hard case luggage collections, with a 100% ABS material molded body coveted. Instructions for Reset the combination lock: 1. The lock is Pre set to 0-0-0; 2. Push the button on the broadside, while in this position, set each number to your preference; 3. Release the button and your combination is now set; 4. Take care when setting the numbers to not release the button while setting it. Luggage set includes a 24-inch suitcase, a travel duffel bag, and a toiletry bag. The duffel bag has trolley sleeve with zippered pocket to pack your travel essentials, you can conveniently attach them to the adjustable suitcase handle to meet your needs. More space:24-inch luggage can expand 25% of space.